简介：Plasmafillingcandramaticallyimprovetheperformanceofhighpowermicrowavedevices.Thecharacteristicsofhigh-powermicrowavepropagationalongplasmafilledwaveguidesinanaxialmagneticfieldareanalyzedinthispaper,andtheponderomotiveforceeffectofhighpowermicrowaveistakenintoconsideration.Theoreticalanalysisandpreliminarynumericalcalculationsareperformed.Theanalysesshowthattheponderomotiveeffectwouldchangetheplasmadensity,distributionofmicrowavefieldintensity,anddispersionofwavepropagation.Thehigherthemicrowavepower,thestrongertheponderomotiveeffect.Indifferentmagneticfields,theponderomotiveeffectisdifferent.

简介：Thecarboxylterminalofsodiumoleatehasastrongerpolaritythanthatofoleicacid;thisterminalismorelikelytobedipolepolarizedandionicallyconductiveinamicrowavefield.Sodiumoleatewasusedasthemodelcompoundtostudythedecarboxylationofoleicacidleadingtohydrocarbonformationviamicrowave-assistedpyrolysistechnology.Thepyrolysisgas,liquid,andsolidproductswerepreciselyanalyzedtodeducethemechanismfordecarboxylationofsodiumoleate.Microwaveenergywasabletoselectivelyheatthecarboxylterminalofsodiumoleate.Duringdecarboxylation,thedoublebondinthelonghydrocarbonchainformedap-πconjugatedsystemwiththecarbanionintermediate.Theresultingp-πconjugatedsystemwasmorestableandbeneficialtothepyrolysisreaction(decarboxylation,terminalallylation,isomerization,andaromatization).Thephysicalpropertiesofpyrolysisliquidweregenerallysimilartothoseofdieselfuel,therebydemonstratingthepossibleuseofmicrowavesforcontrollingthedecarboxylationofsodiumoleateinordertomanufacturerenewablehydrocarbonfuels.

简介：为nanostructuredSnO2的先锋在不同条件下面经由一个帮助微波的热水的方法被综合，用SnCl2吗？

简介：有Pt/Ni的不同原子比率的PtNi/Cnanoparticles在脉搏微波被生产帮助polyol过程。传播电子显微镜学(TEM)图象显示出一致形态学。加精力的X光检查衍射(XRD)模式散X光检查(EDX)光谱学建议纯作文。周期的voltammogram学习表明PtNi/Cnanoparticles在脉搏微波综合了帮助polyol过程比那些在连续过程综合的为甲醇的氧化举办更好催化的活动到二氧化碳。

简介：Anovelphotonic-assistedapproachtomicrowavefrequencymeasurementisproposedandexperimentallydemonstrated.Theproposedschemeisbasedonthefrequency-to-powermappingwithdifferenttransmissionresponses.Apolarizerisusedinoneoutputbranchofaphasemodulatortosimultaneouslyimplementphasemodulationandintensitymodulation.OwingtothecomplementarynatureofthetransmissionresponsesandtheMach-Zehnderinterferometers(MZIs),thisschemetheoreticallyprovideshighresolutionandtunablemeasurementrange.Themeasurementerrorsintheexperimentalresultscanbekeptwithin0.2GHzoverafrequencyrangefrom0.1to5.3GHz.

简介：Atunablenegativecoefficientband-passmicrowavephotonicfilter(MPF)withimprovedmainlobe-to-sidelobesup-pressionratio(MSSR)byaSagnacinterferometer(SI)isexperimentallydemonstrated.ThenegativecoefficientcharacteristicofMPFisachievedbyusingthephasemodulationtechnology.Thecentralfrequencyoftheband-passMPFistunablecontinuouslybychangingthewavelengthseparationofmulti-wavelengthopticalcarriers.A38-tapnegativecoefficientband-passMPFwhoseMSSRisincreasedbyabout6.371dBisachievedinexperimentbyapodizingthetapcoefficientwiththeSagnacinterferometer.

简介：Ahigh-Qmicrowavephotonicfilterusingasemiconductoropticalamplifier(SOA)-basedmode-lockingfiberringlaserisproposed,analyzedandexperimentallydemonstrated.Theproposedmicrowavephotonicfiltercanrealizeahigh-Qfrequencyresponse,itiscompactwithoutanopticalsource,anditcanbeeasilytunedbyadjustinganopticalvariabledelaylineinaringcavity.AresultwithaQ-factorofabout236andarejectionratioofabout45dBisobtained.Themeasuredresultsandthetheoreticalestimationsagreeverywell.